Signal-lamp



A. MEYER.

SIGNAL LAMP. APPLICATION HLED JULY 2, 191.9.

1, 35 1 1 1 Patented Aug. 31, 1920.

UNITED STATES PATENT OFFICE.

AUGUST MEYER, OF WELLSTON, MISSOURI, ASSIGN OR TO HANDIIAN-BUCK MANUFAC-TUBING COMPANY, OF ST. LOUIS, MISSOURI, .A CORPORATION OF MISSOURI.

SIGNAL-LAMP.

Specification of Letters Patent. Patented Allg. 31, 1920.

Application led July 2, 1919. Serial No. 308,210.

T 0 all whom it may concer/n:

Be it known that I, AUGUST MEYER, a citizen of the United States ofAmerica, a resident of llellston, in the county of St. Louis, State ofMissouri, have invented certain new and useful Improvements inSignaLLamps, of which the following is a full, clear, and exactdescription, reference being had to the accompanyingy drawings, forminga part of this speciication.

My invention relates to signal lamps for railway use, and has 'for itsobject to provide within a lamp of this kind a rotatable screen movablerelative to a lens or lenses of the lamp, and which may include either ashield for preventing the passage of rays oi light from the interior ofthe lamp through a lens, or colored plates through which the rays oflight pass to be projected through the lens. Lamps having rotatablescreens of the kind mentioned have been heretofore made, but they areunsuited for the employment of electric lamps, which should bestationarily mounted with provi sion for the rotation of the screenrelative to the electric lamp. By my improvement, I mount an electriclamp socket in a stationary position upon the base of a signal lampshell and provide for the rotation of the screen around the electriclamp socket, so that the movement of the screen may take place withoutmovement of the electric lamp.

Figure I is a top plan view of my signal lamp with the lid open.

lfig. Il is a vertical section taken on irregular line H-II, Fig. I.

Fig. HI is an inverted plan of the lamp.

ln the drawings, A designates the shell of my signal lamp which includesa base plate 1, and has fitted thereto any suitable number of lenses 2.

ll/Tithin the lamp shell is an electric lamp socket 3 which receives alamp bulb 3, and to which electric current is delivered throughConducting wires leading through the shell of the lamp. T he lamp socket3 is supported by the base plate l ot the signal lamp shell to which itis secured in a central position, so that it remains stationary duringthe use ot the signal lamp. Around the lamp socket 3 is an annular rim 5projecting upwardly from the base plate l, said rim being preferablyproduced from a plate 6 mounted on the base plate, and constituting aseat for the electric lamp socket.

T designates a carrier ring loosely seated on the base plate lconcentric with the rim 5 surrounding the electric lamp socket, andhaving at its inner margin an upturned annular Bange 8 movable incontact with the rim 5, which serves as a guide during rotative movementof the carrier ring 7. fit the outer margin of the carrier ring T is anupturned flange 9, which contacts loosely with the shell ot the lamp,said shell being prelierably provided with an inwardly extending roundedannular bead 10 located opposite to the marginal flange 9, which bycontact with the vertical iiange of the carrier ring reduces the degreeoi' frictional contact be tween said flange and the lamp shell.

The carrier ring 7 supports a screen il, movable to and from the lensesoi the signal lamp upon rotation oi' the carrier ring.

To provide for the operation of the carrier ring 9 without opening thesignal lamp, I form an opening l2, preferably a curved slot, in the baseplate l ot the signal lamp shell, and extend through said opening anoperating member 13, which may be in the torni of a handle such as shownin Figs. Il and HI, or ot any other suitable form.

l'claiin:

l. In a signal lamp, a shell, a lamp centrally disposed in said shellabove the bottom thereof, a rim surrounding said centrally disposedlamp, and a screen carrier comprising a ring interposed between said rimand the signal lamp shell, said shell having a rounded annular bead andsaid carrier ring having a marginal flange contacting with Eeach other.

2. ln a signal lamp, a shell, a lamp centrally disposed in said shelland spaced above the bottom thereof, a rim surrounding said centrallydisposed lamp, and a screen carrier comprising a ring rotatable upon theouter periphery ot said rim, said ring being provided with an innermarginal flange contacting with the rim surrounding the centrallydisposed lamp, and also provided with an outer liange contacting withthe inner wall of said shell.

In testimony that l claim the foregoing I hereunto ailix my signature.

AUGUST MEYER.

